256  
FXUS65 KBYZ 150726  
AFDBYZ  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BILLINGS MT  
126 AM MDT MON JUN 15 2026  
   
KEY MESSAGES
 
 
 
- WARMING AND MOSTLY DRY CONDITIONS THROUGH TUESDAY. ISOLATED LOW  
SHOWERS, MAINLY EAST OF ROSEBUD COUNTY.  
 
- WINDY CONDITIONS LATE TUESDAY THROUGH WEDNESDAY.  
 
- COLD FRONT BRINGS A COOL DOWN AND LOW TO MODERATE CHANCE OF  
SHOWERS/THUNDERSTORMS WEDNESDAY, MAINLY FOR EAST CENTRAL AND  
SOUTHEAST MONTANA.  
 
 

 
   
DISCUSSION
 
 
NEXT 7 DAYS (THROUGH SUNDAY)...  
 
CONDITIONS WILL CONTINUE TO TREND WARMER AND DRIER INTO TUESDAY,  
WITH HIGHS TODAY IN THE 70S TO LOW 80S, INCREASING TO 80S TO NEAR  
90 TUESDAY. OCCASIONAL WEAK WAVES IN THE FLOW WILL BRING LOW  
CHANCES (10-30%) FOR SHOWERS AND WEAK THUNDERSTORMS INTO TUESDAY.  
 
WINDS WILL BE BREEZY OVER THE EAST TODAY, WITH GUSTS OF 20 TO 40  
MPH THROUGH THE AFTERNOON. AHEAD OF A STRONGER SHORTWAVE DROPPING  
THROUGH THE REGION LATE TUESDAY INTO WEDNESDAY, WINDS WILL  
INCREASE OVER THE FOOTHILLS TUESDAY AFTERNOON WITH A MODERATE  
CHANCE FOR A GUST GREATER THAN 50 MPH. INTO WEDNESDAY, BREEZY  
NORTHWEST WINDS OF 30 TO 50 MPH WILL SPREAD ACROSS THE REGION,  
HIGHEST OVER THE EAST, AS THE WAVE AND AN ASSOCIATED COLD FRONT  
MOVE THROUGH. TEMPERATURES WILL BE COOLER WEDNESDAY BEHIND THE  
FRONT, WITH HIGHS IN THE UPPER 60S TO MID 70S.  
 
WITH THE STRONGER WAVE LATE TUESDAY INTO WEDNESDAY, BETTER  
POTENTIAL FOR SHOWERS AND THUNDERSTORMS (20-60% CHANCE) ARRIVES,  
MAINLY FOR NORTHERN AND EASTERN AREAS. THROUGH THE END OF THE WORK  
WEEK, OCCASIONAL PIECES OF ENERGY WILL CONTINUE TO MOVE THROUGH  
THE UPPER LEVEL NORTHWEST FLOW, ALLOWING ISOLATED  
AFTERNOON/EVENING SHOWERS AND THUNDERSTORMS TO CONTINUE (20% OR  
LESS CHANCE). HIGHS WILL GENERALLY STAY IN THE 70S TO LOW 80S FOR  
THE LATER HALF OF THE WEEK.  
 
ENSEMBLES CONTINUE TO INDICATE UPPER TROUGHING WILL MOVE ONTO THE  
WEST COAST FRIDAY INTO SATURDAY, WITH SOUTHWEST FLOW DEVELOPING  
OVER THE NORTHERN ROCKIES. THIS WOULD BRING A BETTER POTENTIAL FOR  
DAILY THUNDERSTORMS OVER THE WEEKEND, WITH SHORTWAVES LIFTING  
INTO THE REGION AND PLAINS MOISTURE ADVECTING INTO THE AREA.  
ARCHER  
   
AVIATION
 
 
VFR CONDITIONS WILL PREVAIL TODAY. LOOK FOR ISOLATED SHOWERS  
ACROSS SE MONTANA THROUGH THE DAY. THERE IS A SLIGHT CHANCE OF  
BRIEF MVFR CONDITIONS WITH THIS ACTIVITY. NORTHWEST WINDS WILL BE  
GUSTY BY LATE MORNING OVER SE MONTANA, WITH GUSTS IN THE 20 TO  
35KT RANGE THROUGH THE AFTERNOON HOURS AFFECTING KBHK/KEKA. BT  
 

 
   
PRELIMINARY POINT TEMP/POPS
 
 
TDY TUE WED THU FRI SAT SUN  
-------------------------------------------------------  
BIL 079 055/088 060/075 050/077 052/081 057/078 055/076  
2/W 00/N 01/N 00/U 00/B 02/T 43/T  
LVM 078 048/083 053/074 043/077 045/081 049/074 047/074  
0/U 00/N 00/N 10/U 00/B 15/T 55/T  
HDN 078 050/088 056/074 047/075 048/082 054/080 053/076  
2/W 10/N 12/W 00/U 00/B 03/T 44/T  
MLS 076 052/086 056/071 048/073 048/078 053/079 053/073  
2/W 00/B 33/W 11/U 00/B 01/B 43/T  
4BQ 074 050/085 057/070 048/072 048/079 054/079 053/072  
2/W 01/B 23/W 01/U 00/B 13/T 55/T  
BHK 073 045/081 050/067 043/069 043/075 047/076 048/071  
3/T 01/E 55/T 22/T 10/U 01/B 34/T  
SHR 073 046/083 053/070 044/072 044/081 049/077 048/072  
1/N 00/B 11/N 01/U 00/B 16/T 78/T  
 

 
   
BYZ WATCHES/WARNINGS/ADVISORIES
 
 
MT...NONE.  
WY...NONE.  
 

 
 

 
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